求y=sin(x-π/4)cos(x+π/4),x属于[0,π/4]的反函数
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求y=sin(x-π/4)cos(x+π/4),x属于[0,π/4]的反函数
求y=sin(x-π/4)cos(x+π/4),x属于[0,π/4]的反函数
求y=sin(x-π/4)cos(x+π/4),x属于[0,π/4]的反函数
y=sin(x-π/4)cos(x+π/4)=sin(x-π/4)sin(π/4-x)=-sin²(x-π/4)=(cos2x-1)/2
y=sin(x-π/4)cos(x+π/4),x属于[0,π/4]的反函数
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